Tokonome Mamori
Mamori Tokonome
Meifong Sakura
Rein Hasume
Rein has stated that she finds Mirei very fascinating, although Mirei doesn't share the sentiment. One instance, where Rein wanted Mirei to use her as her Arm, the two had shared a kiss, although Mirei was far from pleased in the aftermath of their brief team up.
Lady J
Like her partner, Rein, Lady J seems to find Mirei fascinating. She did nothing but chuckle when Rein had kissed Mirei to initiate Drive and even explained to her how Rein's Arm ability works.